Some users have reported that clips that were working normally suddenly appear  with missing media (checkerboard),  even if they can confirm with a external browser that the media files are still accessible.  And sometimes also random error dialogs about an error while trying yo open a file, normally in complex situations involving thousands of metadata files.

It has only been reported on complicated Timelines with hundreds of clips (or long enumerated sequences), . In these cases Mistika works well until a certain point, then the missing media warnings start appearing (chequerboard images) or error dialogs while trying to open a particular file for unkwon reasons.  

If the user restart Mistika the problem is gone for a while, but it can happen again at some point


This is normally caused by having a small limit for an operating system setting, which is the maximun number of opened files. Increasing this limit should fix the problem. 


Please note that this is not a Mistika setting but an operating system one. Each operating system requires a different procedure to increase this limit. However,  in recent tomes it has only been reported by macOS users.  Here are some instructions for macOS to increase those limits: